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Installation
B800-00-880 Issue D
3 Installation
3.1 Unpack and inspect
Take care when unpacking the pump to avoid excessive shocks that could damage the bearings and reduce the life
of the pump. The pump is supplied with the inlet and outlet sealed to prevent entry of dust and vapour. Do not
remove these seals until the pump is installed on the vacuum system.
Remove all packing materials and check the pump. If the pump is damaged, notify the supplier and the carrier in
writing within three days; state the Item Number of the pump together with the order number and the supplier's
invoice number. Retain all packing materials for inspection. Do not use the pump if it is damaged.
Check that the package contains the items listed in Table 15. If any of these items is missing, notify the supplier in
writing within three days.
If the pump is not to be used immediately, store the pump in suitable conditions, following the procedure described
in Section 6.1.
Do not discard the packing materials; retain them to re-package the pump if it is returned for service.
3.2 Typical installation
A typical pumping system with a nEXT pump is shown in Figure 10.
The accessories available for the nEXT pumps are detailed in Section 7.4; the accessories are shown in Figure 20
and 21.
Use suitable lifting equipment to move the pump. Failure to do so can cause injury to people and
damage to the equipment. Refer to Section 2.2 for the mass of the pump.
The inlet screen is a coarse filter for debris and should not be used as a finger guard.
Table 15 - Checklist of components
Quantity Description Check ()
1 nEXT pump with inlet screen fitted (fitted to CF pumps only)
1 Inlet seal (either trapped O-ring with integral inlet screen, Co-
seal or copper compression gasket suitable for the inlet flange
type)
1 Connector (24 V) - for driving accessories from Controller socket
1 Inlet strainer (fitted in the NW25 interstage and booster port
only)
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